Oil-burner.



G. A. SPENCE.

0H. BURNER.

APPLICATIQN FILED, SEPT. 7. 1916.

Patent ed May 1918.

GARFIELD A. srnivcn, or ALIJINE, TEXAS. 1

OIL-BURNER.

Specification of Letters Patent.

Patented na aaioie.

Application filed September 7, 1916. Serial No. 118,811.

To all whom 2'25 may concern:

Be it known that I, GARFIELD A. finance, a citizen of the United States,residing at Aldine, in the county of Harris and State of Texas, haveinvented certain new and useful Improvements in Oil-Burners, of whichthe following is a specification.

This invention relates to new and useful improvements in an oil burner.

The object of the invention is to provide a burner of the characterdescribed by means of which fuel oil is fed into a steam jet whereby it'is atomized, mingled with the steam, and dischargedinto the combus tionchamber.

With the above and other objects in view, the invention relates tocertain novel features of construction, arrangement of parts and use, anexample of which is given in this specification and illustrated in theaccompanying drawing, wherein Figure 1 is a vertical, sectional View ofthe burner.

Fig. 2 is a nozzle end view thereof.

Fig. 3 is a rear end view thereof.

Fig. at is a plan View thereof.

Fig. 5 is a side elevation and the pipe con nections, and

Fig. 6 is a nozzle end View showing said pipe connections.

Referring now more particularly to the drawings wherein like numerals ofreference designate similar parts in each of the figures, the numeral 1designates a metallic block having the passageway 2 extendingtherethrough from end to end and forming a mixing chamber, into one endof which the thimble 3 is threaded. The inner end of this thimble isobtusely convex and has a restricted orifice 4E forming a nozzle andthreaded into the outer end of the thimble is the steam pipe 5 throughwhich steam is forced into the thimble and through the nozzle 42,forming a continuous steam jet which is discharged into the combustionchamber through the passageway 2. Integral with the block 1 andupstanding therefrom is the neck 6 into which the thimble 7 is threaded.This thimble is at right angles to the thimble 3 and its inner end isobtusely convex and has an. orifice 8 forming a nozzle. A fuel pipe 9has one end threaded through an internal orifice through the wall of theneck 6 and thimble 7 and through this pipe, fuel oil is discharged in acontinuous stream into the thimble 7 and passes down through the nozzle8 thereof into the steam jet, and is thereby atomized and mingled withthe steam and carried into the combustion chamber. The fuel beingthoroughly atomized in the mixing chamber is completely consumed in thecombustion chamber. The upper end of the thimble 7 is closed by means ofa plug 1.0 which is threaded therein and which may be readily removedwhen it is desired to clean out said thimble and relieve it fromdeposits of carbon which might accumulate therein.

This form of burner may be easily cleaned by the removal of the thimbles3 and 7 leaving the passageway 2 open and readily accessible.

The combustion takes place at the inner end of the mixing chamberthereby causing a slight backward pressure in said chamber 4 into themixing chamber will rotate or whirl, by reason of said back pressurecatching up and entraining the fuel from the nozzle 8 and the whirlingof the mixture in the chamber will cause the complete and uniformmixture of the fuel and steam. The inner ends of the thimbles 3 and 7have been made obtusely oval so as to project only a short distance intothe mixing chamber, and thus offer the least possible obstruction to thewhirling and agitation of the mixture.

What I claim is: An oil burner including a block having a passagewayextending therethrough from end to end, a thimble threaded into one endof said passageway whose inner end is obtusely convex, said thimblehaving an enlarged internal chamber communicating with said passagewaythrough a restricted orifice in its inner end through which steam isprojectedinto said passageway in a continuous stream from said chamber,a steam pipe connected to the outer end of said thimble, a neckupstanding from said block and integral therewith, a thimble having anobtusely convex inner end and an enlarged internal chamber, said thimblebeing threaded into said block through said neck at right angles to thefirst mentioned thimble, said chamber communicating with said passagewaythrough a restricted orifice in its inner end, through which fuel is discharged in a continuous stream, a removable plug threaded into andclosing the outer end of said chamber, a fuel pipe threaded through theWall of said neck and thimble and communicating With the internalchamber of said thimble, said. thinlbl'e's' bein arranged to dischargesteam and fuel respec- R tively at right angles to each other in saidpassageway.

In testimony whereof I have signed my Copies of this patent may beobtained for name to this specification in thepi'esence of twosubscrlblng wltnesses.

GARFIELD A. SPENCE.

Witnesses:

E. G. MURRAY, J. WV. Woons.

five cents each, by addressing the Commissioner of Patents, Washington,D. G.

